So, I was able to scrub all of the mould and scales off of the Vanda, with just water and a toothbrush. Took some time but wasn't as laborious as I expected. The next project is to remove all of the Spanish moss and see how badly desiccated the roots are the the basket. But that's for another thread, thank you so much for all of the advice
Unfortunately I was not able to get any other pest chems for this time, but I will definitely look into the one you recommended
I did treat with a diluted Physan and neem mix because that's what I have on have and I will update with progress later.